Home / 53,843.89-80,771.36-20,591.92

Finding the Fourth Proportional to 53,843.89, 80,771.36 and 20,591.92

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Solution

The fourth proportional to 53,843.89, 80,771.36 and 20,591.92 is: 30,889.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,843.89 : 80,771.36 = 20,591.92 : x
  2. Step 2: Convert to fraction form
    53,843.89/80,771.36 = 20,591.92/x
  3. Step 3: Cross multiply
    53,843.89x = 80,771.36 × 20,591.92
  4. Step 4: Simplify right side
    53,843.89x = 1,663,237,453.81
  5. Step 5: Solve for x
    x = 1,663,237,453.81/53,843.89
  6. Step 6: Final answer
    x = 30,889.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.